nasa released brand new images, the continents lit up, asia and australia, africa and europe, south america and north america. the united states, a beacon of light, right there across the galaxy. >>> and our person tonight is dave brubeck, the man who put the urgent pulse into american jazz. he died at the age of 91, after a life of breaking through racial barriers and musical ones. before brubeck, this was the simple rhythm of most jazz songs. listen. ♪ but after brubeck, the famous five-four rhythm that rocked the world. here it is. ♪ dave brubeck. and we know there are people and videos that capture your imagination every day, so, tweet me your thoughts for the "instant index," @dianesawyer. >>> and, coming up right now, we have a test for you. is this the queen of england? >> my dear, thank you so much. >> or, is this the queen of england? >> thank you for inviting me. >> do you know which one is the imposter? stay tuned. made a commitment to the gulf. bp has paid over twenty-three billion dollars to help those affected and to cover cleanup costs. today, the beaches and gulf are ope